The MD−203 OCXOs with Correction Coefficients and I²C interface is the newest model in Vectron's Coefficient Corrected Oscillator Series. Offered in an industry standard 1x1 hermetic, surface−mount package, the oscillator is capable of frequency vs. temperature stabilities of 8 ppb over an industrial temperature range (−40 to +85°C) without using the coefficients. With the coefficients, the end user can improve upon the stability by a factor of 10, offering unprecedented stability for an oscillator of this cost, size and power consumption. The I²C interface provides the user access to the coefficients as well as an onboard temperature sensor for real−time temperatures measurements.